change wget to curl to make download work on windows

tests/utils.py

@@ -3,27 +3,27 @@
 
 def download_model(url, output_dir):
     """
-    Download a file from a given URL using wget, if it doesn't already exist.
-    
+    Download a file from a given URL using curl, if it doesn't already exist.
+
     Args:
     - url: str, the URL of the file to download.
     - output_dir: str, the directory where the file should be saved.
-    
+
     Returns:
     - str: The path to the downloaded file.
     """
     file_name = url.split("/")[-1]
     output_path = os.path.join(output_dir, file_name)
-    
+
     if os.path.exists(output_path):
         print(f"File {file_name} already exists in {output_dir}. Skipping download.")
         return output_path
-    
+
     try:
-        subprocess.run(["wget", url, "-O", output_path], check=True)
+        subprocess.run(["curl", url, "--output", output_path], check=True)
         print(f"Downloaded {file_name} to {output_dir}")
     except subprocess.CalledProcessError as e:
         print(f"Failed to download {file_name}: {e}")
         raise
-    
+
     return output_path